From 1efa473e65e3cefbd03c5cc9fed6f7fa73bf31d2 Mon Sep 17 00:00:00 2001 From: Swathi Dhanavanthri Date: Sat, 5 Dec 2020 01:25:39 -0800 Subject: [PATCH] drm/i915/dg1: Implement WA_16011163337 Set GS Timer to 224 to prevent a HS/DS hang. Bspec: 53508 v2: reword commit message and add comment explaining why read verification is ignored (Chris) Cc: Matt Roper Signed-off-by: Swathi Dhanavanthri Signed-off-by: Lucas De Marchi Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20201205092542.2325477-1-lucas.demarchi@intel.com --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 7c6b21ced56f9..a81728c52bd50 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -686,6 +686,16 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine, /* Wa_22010493298 */ WA_SET_BIT_MASKED(HIZ_CHICKEN, DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE); + + /* + * Wa_16011163337 + * + * Like in tgl_ctx_workarounds_init(), read verification is ignored due + * to Wa_1608008084. + */ + wa_add(wal, + FF_MODE2, + FF_MODE2_GS_TIMER_MASK, FF_MODE2_GS_TIMER_224, 0); } static void -- 2.39.5